Flux for use in brazing cast-iron and other metals.



.- IoDrawing.

PAT

income, or mcnnoma, vrc'ronm, n'nsrmm, Assmnon mo .mcon NA'I'HAN, or s'nxrnm, vlcroam', nosrmm.

son was m nnazmo ca sr-mon AND ornnn mamas;

7 To all whom may concern.

Be it known that I, Ancmmnn Freer-Ne, :1

- subject of the King of Great Britain, re-

- siding at No. 9 Corsair street, Richmond Metals,

inthe State of Victoria, Commonwealth 0 Australia, have invented. a new and useful Flux for Use in Brazing Cast-Iron and other of which the following is a specification.

This invention relates to an improved flux for use in brazing cast iron in particular but useful also for brazing other metals, an it has been devised in order to provide a flux which can be manufactured economically and is found to be highly eflicient in metal V brazing operations.

Sodium bi-borate --38% Sodium carbonate ..19% Sodium chlorid -38% Soda ash 4.96%

Chlorid of gold equivalent to pure metallic gol 4---. .O4% The sodium carbonate and sodium chlorid an dried and sifted finelliyl' in any approved we. and then thoroug admixed. The

so 'um bi-borate and so a ash are sifted finely and then thoroughly admixed with the sodium carbonate and sodium chlorid.

The chlorid of gold is then added to the other ingredients and thoroughly admixed therewith by stirring or in any other suitable way.

The manner of employing a flux made in i Specification of Letters Patent. Application filed January 18, 1917. Serial No. 143,106.

- sults.

chlorid of gold .'04%.

accordance 'withthe present invention is as follows The1pieces' of cast ironor other metals to be brazed together are clamped tightly to-. color or de ees' gether and then heated to a cher to approximately eight hundre Fahrenheit in a furnace or fire heat by charcoal or oil fuel. r The pieces of cast iron or other metals are then taken from the furnace and the flux is applied over the junction of the parts to be brazed together. The heat of the OF ICE;

. Patented Aug. 13, 1918.;

metal liquefies the flux in which state it passes readily between and forms a coating on the adjacent surfaces to be brazed;

A bar of spelter, is then melted and run into the space between the surfaces to'be brazed by the flame of a suitable blow-pipe or jet and a borax flux in the ordinary way. The flame of the blowipe or jet keeps the temperature ofthe meta s bein brazed afi proximatel at eight hundred egrees Fa renheit and insures the flux comprising the present invention being kept in a proper condition for insuring the most satisfactory re- A flux pre ared andemployed in accordance with t e foregoing description will be found thoroughly eflicient in repairing broken castings or parts of machinery or the i like in a highly satisfactory manner.

. What I doclaim is A flux for brazing cast iron and other metals comprising an intimate mixture, so-

4 dium bi-borate 38%, sodium carbonate 19% sodium chlorid 38%, soda ash 4.96% an In testimony whereof I afiix my signature in presence of two witnesses.

ARGHIBALD FIGGINS.-- Witnesses: g

James H. ANDERSON, Enrrn A. NEWALL. 

